document.write("<div id=meizzCalendarLayer style='position: absolute; z-index: 9999; width: 144; height: 193; display: none'>");
  2document.write("<iframe name=meizzCalendarIframe scrolling=no frameborder=0 width=100% height=100%></iframe></div>");
  3function writeIframe()
  4{
  5    var strIframe = "<html><head><meta http-equiv='Content-Type' content='text/html; charset=utf-8'><style>"+
  6    "*{font-size: 12px; font-family: 宋体}"+
  7    ".bg{  color: "+ WebCalendar.lightColor +"; cursor: default; background-color: "+ WebCalendar.darkColor +";}"+
  8    "table#tableMain{ width: 142; height: 180;}"+
  9    "table#tableWeek td{ color: "+ WebCalendar.lightColor +";}"+
 10    "table#tableDay  td{ font-weight: bold;}"+
 11    "td#meizzYearHead, td#meizzYearMonth{color: "+ WebCalendar.wordColor +"}"+
 12    ".out { text-align: center; border-top: 1px solid "+ WebCalendar.DarkBorder +"; border-left: 1px solid "+ WebCalendar.DarkBorder +";"+
 13    "border-right: 1px solid "+ WebCalendar.lightColor +"; border-bottom: 1px solid "+ WebCalendar.lightColor +";}"+
 14    ".over{ text-align: center; border-top: 1px solid #FFFFFF; border-left: 1px solid #FFFFFF;"+
 15    "border-bottom: 1px solid "+ WebCalendar.DarkBorder +"; border-right: 1px solid "+ WebCalendar.DarkBorder +"}"+
 16    "input{ border: 1px solid "+ WebCalendar.darkColor +"; padding-top: 1px; height: 18; cursor: hand;"+
 17    "       color:"+ WebCalendar.wordColor +"; background-color: "+ WebCalendar.btnBgColor +"}"+
 18    "</style></head><body onselectstart='return false' style='margin: 0px' oncontextmenu='return false'><form name=meizz>";
 19
 20    if (WebCalendar.drag){ strIframe += "<scr"+"ipt language=javascript>"+
 21    "var drag=false, cx=0, cy=0, o = parent.WebCalendar.calendar; function document.onmousemove(){"+
 22    "if(parent.WebCalendar.drag && drag){if(o.style.left=='')o.style.left=0; if(o.style.top=='')o.style.top=0;"+
 23    "o.style.left = parseInt(o.style.left) + window.event.clientX-cx;"+
 24    "o.style.top  = parseInt(o.style.top)  + window.event.clientY-cy;}}"+
 25    "function document.onkeydown(){ switch(window.event.keyCode){  case 27 : parent.hiddenCalendar(); break;"+
 26    "case 37 : parent.prevM(); break; case 38 : parent.prevY(); break; case 39 : parent.nextM(); break; case 40 : parent.nextY(); break;"+
 27    "case 84 : document.forms[0].today.click(); break;} window.event.keyCode = 0; window.event.returnValue= false;}"+
 28    "function dragStart(){cx=window.event.clientX; cy=window.event.clientY; drag=true;}</scr"+"ipt>"}
 29
 30    strIframe += "<select name=tmpYearSelect  onblur='parent.hiddenSelect(this)' style='z-index:1;position:absolute;top:3;left:18;display:none'"+
 31    " onchange='parent.WebCalendar.thisYear =this.value; parent.hiddenSelect(this); parent.writeCalendar();'></select>"+
 32    "<select name=tmpMonthSelect onblur='parent.hiddenSelect(this)' style='z-index:1; position:absolute;top:3;left:74;display:none'"+
 33    " onchange='parent.WebCalendar.thisMonth=this.value; parent.hiddenSelect(this); parent.writeCalendar();'></select>"+
 34
 35    "<table id=tableMain class=bg border=0 cellspacing=2 cellpadding=0>"+
 36    "<tr><td width=140 height=19 bgcolor='"+ WebCalendar.lightColor +"'>"+
 37    "    <table width=140 id=tableHead border=0 cellspacing=1 cellpadding=0><tr align=center>"+
 38    "    <td width=15 height=19 class=bg title='向前翻 1 月快捷键：←' style='cursor: hand' onclick='parent.prevM()'><b>&lt;</b></td>"+
 39    "    <td width=60 id=meizzYearHead  title='点击此处选择年份' onclick='parent.funYearSelect(parseInt(this.innerText, 10))'"+
 40    "        onmouseover='this.bgColor=parent.WebCalendar.darkColor; this.style.color=parent.WebCalendar.lightColor'"+
 41    "        onmouseout='this.bgColor=parent.WebCalendar.lightColor; this.style.color=parent.WebCalendar.wordColor'></td>"+
 42    "    <td width=50 id=meizzYearMonth title='点击此处选择月份' onclick='parent.funMonthSelect(parseInt(this.innerText, 10))'"+
 43    "        onmouseover='this.bgColor=parent.WebCalendar.darkColor; this.style.color=parent.WebCalendar.lightColor'"+
 44    "        onmouseout='this.bgColor=parent.WebCalendar.lightColor; this.style.color=parent.WebCalendar.wordColor'></td>"+
 45    "    <td width=15 class=bg title='向后翻 1 月快捷键：→' onclick='parent.nextM()' style='cursor: hand'><b>&gt;</b></td></tr></table>"+
 46    "</td></tr><tr><td height=20><table id=tableWeek border=1 width=140 cellpadding=0 cellspacing=0 ";
 47    if(WebCalendar.drag){strIframe += "onmousedown='dragStart()' onmouseup='drag=false' onmouseout='drag=false'";}
 48    strIframe += " borderColorLight='"+ WebCalendar.darkColor +"' borderColorDark='"+ WebCalendar.lightColor +"'>"+
 49    "    <tr align=center><td height=20>日</td><td>一</td><td>二</td><td>三</td><td>四</td><td>五</td><td>六</td></tr></table>"+
 50    "</td></tr><tr><td valign=top width=140 bgcolor='"+ WebCalendar.lightColor +"'>"+
 51    "    <table id=tableDay height=120 width=140 border=0 cellspacing=1 cellpadding=0>";
 52         for(var x=0; x<5; x++){ strIframe += "<tr>";
 53         for(var y=0; y<7; y++)  strIframe += "<td class=out id='meizzDay"+ (x*7+y) +"'></td>"; strIframe += "</tr>";}
 54         strIframe += "<tr>";
 55         for(var x=35; x<39; x++) strIframe += "<td class=out id='meizzDay"+ x +"'></td>";
 56         strIframe +="<td colspan=3 class=out title='"+ WebCalendar.regInfo +"'><input style=' background-color: "+
 57         WebCalendar.btnBgColor +";cursor: hand; padding-top: 4px; width: 100%; height: 100%; border: 0' onfocus='this.blur()'"+
 58         " type=button value='&nbsp; &nbsp; 关闭' onclick='parent.hiddenCalendar()'></td></tr></table>"+
 59    "</td></tr><tr><td height=20 width=140 bgcolor='"+ WebCalendar.lightColor +"'>"+
 60    "    <table border=0 cellpadding=1 cellspacing=0 width=140>"+
 61    "    <tr><td><input name=prevYear title='向前翻 1 年快捷键：↑' onclick='parent.prevY()' type=button value='&lt;&lt;'"+
 62    "    onfocus='this.blur()' style='meizz:expression(this.disabled=parent.WebCalendar.thisYear==1000)'><input"+
 63    "    onfocus='this.blur()' name=prevMonth title='向前翻 1 月快捷键：←' onclick='parent.prevM()' type=button value='&lt;&nbsp;'>"+
 64    "    </td><td align=center><input name=today type=button value='今天' onfocus='this.blur()' style='width: 50' title='当前日期快捷键：T'"+
 65    "    onclick=\"parent.returnDate(new Date().getDate() +'/'+ (new Date().getMonth() +1) +'/'+ new Date().getFullYear())\">"+
 66    "    </td><td align=right><input title='向后翻 1 月快捷键：→' name=nextMonth onclick='parent.nextM()' type=button value='&nbsp;&gt;'"+
 67    "    onfocus='this.blur()'><input name=nextYear title='向后翻 1 年快捷键：↓' onclick='parent.nextY()' type=button value='&gt;&gt;'"+
 68    "    onfocus='this.blur()' style='meizz:expression(this.disabled=parent.WebCalendar.thisYear==9999)'></td></tr></table>"+
 69    "</td></tr><table></form></body></html>";
 70    with(WebCalendar.iframe)
 71    {
 72        document.writeln(strIframe); document.close();
 73        for(var i=0; i<39; i++)
 74        {
 75            WebCalendar.dayObj[i] = eval("meizzDay"+ i);
 76            WebCalendar.dayObj[i].onmouseover = dayMouseOver;
 77            WebCalendar.dayObj[i].onmouseout  = dayMouseOut;
 78            WebCalendar.dayObj[i].onclick     = returnDate;
 79        }
 80    }
 81}
 82function TWebCalendar() //初始化日历的设置
 83{
 84 this.regInfo    = "点击关闭按钮关闭日期选择器！";
 85   // this.regInfo    = "WEB Calendar 3.0 作者：meizz(梅花雪疏影横斜) 网站：http://www.meizz.com/ ;关闭的快捷键：[Esc]";
 86   // this.regInfo   += " Ver 2.0：walkingpoison(水晶龙) Ver 1.0：meizz(梅花雪疏影横斜)";
 87    this.daysMonth  = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
 88    this.day        = new Array(39);            //定义日历展示用的数组
 89    this.dayObj     = new Array(39);            //定义日期展示控件数组
 90    this.dateStyle  = null;                     //保存格式化后日期数组
 91    this.objExport  = null;                     //日历回传的显示控件
 92    this.eventSrc   = null;                     //日历显示的触发控件
 93    this.inputDate  = null;                     //转化外的输入的日期(d/m/yyyy)
 94    this.thisYear   = new Date().getFullYear(); //定义年的变量的初始值
 95    this.thisMonth  = new Date().getMonth()+ 1; //定义月的变量的初始值
 96    this.thisDay    = new Date().getDate();     //定义日的变量的初始值
 97    this.today      = this.thisDay +"/"+ this.thisMonth +"/"+ this.thisYear;   //今天(d/m/yyyy)
 98    this.iframe     = window.frames("meizzCalendarIframe"); //日历的 iframe 载体
 99    this.calendar   = getObjectById("meizzCalendarLayer");  //日历的层
100    this.dateReg    = "";           //日历格式验证的正则式
101
102    this.yearFall   = 50;           //定义年下拉框的年差值
103    this.format     = "yyyy-mm-dd"; //回传日期的格式
104    this.timeShow   = false;        //是否返回时间
105    this.drag       = true;         //是否允许拖动
106    this.darkColor  = "#6BBFD9";    //控件的暗色
107    this.lightColor = "#FFFFFF";    //控件的亮色
108    this.btnBgColor = "#FFFFF5";    //控件的按钮背景色
109    this.wordColor  = "#000080";    //控件的文字颜色
110    this.wordDark   = "#DCDCDC";    //控件的暗文字颜色
111    this.dayBgColor = "#DEEAF6";    //日期数字背景色
112    this.todayColor = "#FF0000";    //今天在日历上的标示背景色
113    this.DarkBorder = "#D4D0C8";    //日期显示的立体表达色
114}   var WebCalendar = new TWebCalendar();
115
116function calendar() //主调函数
117{
118    var e = window.event.srcElement;   writeIframe();
119    var o = WebCalendar.calendar.style; WebCalendar.eventSrc = e;
120 if (arguments.length == 0) WebCalendar.objExport = e;
121    else WebCalendar.objExport = eval(arguments[0]);
122
123    WebCalendar.iframe.tableWeek.style.cursor = WebCalendar.drag ? "move" : "default";
124 var t = e.offsetTop,  h = e.clientHeight, l = e.offsetLeft, p = e.type;
125 while (e = e.offsetParent){t += e.offsetTop; l += e.offsetLeft;}
126    o.display = ""; WebCalendar.iframe.document.body.focus();
127    var cw = WebCalendar.calendar.clientWidth, ch = WebCalendar.calendar.clientHeight;
128    var dw = document.body.clientWidth, dl = document.body.scrollLeft, dt = document.body.scrollTop;
129    
130    if (document.body.clientHeight + dt - t - h >= ch) o.top = (p=="image")? t + h : t + h + 6;
131    else o.top  = (t - dt < ch) ? ((p=="image")? t + h : t + h + 6) : t - ch;
132    if (dw + dl - l >= cw) o.left = l; else o.left = (dw >= cw) ? dw - cw + dl : dl;
133
134    if  (!WebCalendar.timeShow) WebCalendar.dateReg = /^(\d{1,4})(-|\/|.)(\d{1,2})\2(\d{1,2})$/;
135    else WebCalendar.dateReg = /^(\d{1,4})(-|\/|.)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/;
136
137    try{
138        if (WebCalendar.objExport.value.trim() != ""){
139            WebCalendar.dateStyle = WebCalendar.objExport.value.trim().match(WebCalendar.dateReg);
140            if (WebCalendar.dateStyle == null)
141            {
142                WebCalendar.thisYear   = new Date().getFullYear();
143                WebCalendar.thisMonth  = new Date().getMonth()+ 1;
144                WebCalendar.thisDay    = new Date().getDate();
145                alert("原文本框里的日期有错误！\n可能与你定义的显示时分秒有冲突！");
146                writeCalendar(); return false;
147            }
148            else
149            {
150                WebCalendar.thisYear   = parseInt(WebCalendar.dateStyle[1], 10);
151                WebCalendar.thisMonth  = parseInt(WebCalendar.dateStyle[3], 10);
152                WebCalendar.thisDay    = parseInt(WebCalendar.dateStyle[4], 10);
153                WebCalendar.inputDate  = parseInt(WebCalendar.thisDay, 10) +"/"+ parseInt(WebCalendar.thisMonth, 10) +"/"+ 
154                parseInt(WebCalendar.thisYear, 10); writeCalendar();
155            }
156        }  else writeCalendar();
157    }  catch(e){writeCalendar();}
158}
159function funMonthSelect() //月份的下拉框
160{
161    var m = isNaN(parseInt(WebCalendar.thisMonth, 10)) ? new Date().getMonth() + 1 : parseInt(WebCalendar.thisMonth);
162    var e = WebCalendar.iframe.document.forms[0].tmpMonthSelect;
163    for (var i=1; i<13; i++) e.options.add(new Option(i +"月", i));
164    e.style.display = ""; e.value = m; e.focus(); window.status = e.style.top;
165}
166function funYearSelect() //年份的下拉框
167{
168    var n = WebCalendar.yearFall;
169    var e = WebCalendar.iframe.document.forms[0].tmpYearSelect;
170    var y = isNaN(parseInt(WebCalendar.thisYear, 10)) ? new Date().getFullYear() : parseInt(WebCalendar.thisYear);
171        y = (y <= 1000)? 1000 : ((y >= 9999)? 9999 : y);
172    var min = (y - n >= 1000) ? y - n : 1000;
173    var max = (y + n <= 9999) ? y + n : 9999;
174        min = (max == 9999) ? max-n*2 : min;
175        max = (min == 1000) ? min+n*2 : max;
176    for (var i=min; i<=max; i++)
177    {
178      //alert(e.options.length);
179      e.options[e.options.length] = new Option(i +"年", i+"", true, true);//e.options.add(new Option(i +"年", i));
180    }
181    e.style.display = "";
182    e.value = y; e.focus();
183}
184function prevM()  //往前翻月份
185{
186    WebCalendar.thisDay = 1;
187    if (WebCalendar.thisMonth==1)
188    {
189        WebCalendar.thisYear--;
190        WebCalendar.thisMonth=13;
191    }
192    WebCalendar.thisMonth--; writeCalendar();
193}
194function nextM()  //往后翻月份
195{
196    WebCalendar.thisDay = 1;
197    if (WebCalendar.thisMonth==12)
198    {
199        WebCalendar.thisYear++;
200        WebCalendar.thisMonth=0;
201    }
202    WebCalendar.thisMonth++; writeCalendar();
203}
204function prevY(){WebCalendar.thisDay = 1; WebCalendar.thisYear--; writeCalendar();}//往前翻 Year
205function nextY(){WebCalendar.thisDay = 1; WebCalendar.thisYear++; writeCalendar();}//往后翻 Year
206function hiddenSelect(e){for(var i=e.options.length; i>-1; i--)e.options.remove(i); e.style.display="none";}
207function getObjectById(id){ if(document.all) return(eval("document.all."+ id)); return(eval(id)); }
208function hiddenCalendar(){getObjectById("meizzCalendarLayer").style.display = "none";};
209function appendZero(n){return(("00"+ n).substr(("00"+ n).length-2));}//日期自动补零程序
210function String.prototype.trim(){return this.replace(/(^\s*)|(\s*$)/g,"");}
211function dayMouseOver()
212{
213    this.className = "over";
214    this.style.backgroundColor = WebCalendar.darkColor;
215    if(WebCalendar.day[this.id.substr(8)].split("/")[1] == WebCalendar.thisMonth)
216    this.style.color = WebCalendar.lightColor;
217}
218function dayMouseOut()
219{
220    this.className = "out"; var d = WebCalendar.day[this.id.substr(8)], a = d.split("/");
221    this.style.removeAttribute('backgroundColor');
222    if(a[1] == WebCalendar.thisMonth && d != WebCalendar.today)
223    {
224        if(WebCalendar.dateStyle && a[0] == parseInt(WebCalendar.dateStyle[4], 10))
225        this.style.color = WebCalendar.lightColor;
226        this.style.color = WebCalendar.wordColor;
227    }
228}
229function writeCalendar() //对日历显示的数据的处理程序
230{
231    var y = WebCalendar.thisYear;
232    var m = WebCalendar.thisMonth; 
233    var d = WebCalendar.thisDay;
234    WebCalendar.daysMonth[1] = (0==y%4 && (y%100!=0 || y%400==0)) ? 29 : 28;
235    if (!(y<=9999 && y >= 1000 && parseInt(m, 10)>0 && parseInt(m, 10)<13 && parseInt(d, 10)>0)){
236        alert("对不起，你输入了错误的日期！");
237        WebCalendar.thisYear   = new Date().getFullYear();
238        WebCalendar.thisMonth  = new Date().getMonth()+ 1;
239        WebCalendar.thisDay    = new Date().getDate(); }
240    y = WebCalendar.thisYear;
241    m = WebCalendar.thisMonth;
242    d = WebCalendar.thisDay;
243    WebCalendar.iframe.meizzYearHead.innerText  = y +" 年";
244    WebCalendar.iframe.meizzYearMonth.innerText = parseInt(m, 10) +" 月";
245    WebCalendar.daysMonth[1] = (0==y%4 && (y%100!=0 || y%400==0)) ? 29 : 28; //闰年二月为29天
246    var w = new Date(y, m-1, 1).getDay();
247    var prevDays = m==1  ? WebCalendar.daysMonth[11] : WebCalendar.daysMonth[m-2];
248    for(var i=(w-1); i>=0; i--) //这三个 for 循环为日历赋数据源（数组 WebCalendar.day）格式是 d/m/yyyy
249    {
250        WebCalendar.day[i] = prevDays +"/"+ (parseInt(m, 10)-1) +"/"+ y;
251        if(m==1) WebCalendar.day[i] = prevDays +"/"+ 12 +"/"+ (parseInt(y, 10)-1);
252        prevDays--;
253    }
254    for(var i=1; i<=WebCalendar.daysMonth[m-1]; i++) WebCalendar.day[i+w-1] = i +"/"+ m +"/"+ y;
255    for(var i=1; i<39-w-WebCalendar.daysMonth[m-1]+1; i++)
256    {
257        WebCalendar.day[WebCalendar.daysMonth[m-1]+w-1+i] = i +"/"+ (parseInt(m, 10)+1) +"/"+ y;
258        if(m==12) WebCalendar.day[WebCalendar.daysMonth[m-1]+w-1+i] = i +"/"+ 1 +"/"+ (parseInt(y, 10)+1);
259    }
260    for(var i=0; i<39; i++)    //这个循环是根据源数组写到日历里显示
261    {
262        var a = WebCalendar.day[i].split("/");
263        WebCalendar.dayObj[i].innerText    = a[0];
264        WebCalendar.dayObj[i].title        = a[2] +"-"+ appendZero(a[1]) +"-"+ appendZero(a[0]);
265        WebCalendar.dayObj[i].bgColor      = WebCalendar.dayBgColor;
266        WebCalendar.dayObj[i].style.color  = WebCalendar.wordColor;
267        if ((i<10 && parseInt(WebCalendar.day[i], 10)>20) || (i>27 && parseInt(WebCalendar.day[i], 10)<12))
268            WebCalendar.dayObj[i].style.color = WebCalendar.wordDark;
269        if (WebCalendar.inputDate==WebCalendar.day[i])    //设置输入框里的日期在日历上的颜色
270        {WebCalendar.dayObj[i].bgColor = WebCalendar.darkColor; WebCalendar.dayObj[i].style.color = WebCalendar.lightColor;}
271        if (WebCalendar.day[i] == WebCalendar.today)      //设置今天在日历上反应出来的颜色
272        {WebCalendar.dayObj[i].bgColor = WebCalendar.todayColor; WebCalendar.dayObj[i].style.color = WebCalendar.lightColor;}
273    }
274}
275function returnDate() //根据日期格式等返回用户选定的日期
276{
277    if(WebCalendar.objExport)
278    {
279        var returnValue;
280        var a = (arguments.length==0) ? WebCalendar.day[this.id.substr(8)].split("/") : arguments[0].split("/");
281        var d = WebCalendar.format.match(/^(\w{4})(-|\/|.|)(\w{1,2})\2(\w{1,2})$/);
282        if(d==null){alert("你设定的日期输出格式不对！\r\n\r\n请重新定义 WebCalendar.format ！"); return false;}
283        var flag = d[3].length==2 || d[4].length==2; //判断返回的日期格式是否要补零
284        returnValue = flag ? a[2] +d[2]+ appendZero(a[1]) +d[2]+ appendZero(a[0]) : a[2] +d[2]+ a[1] +d[2]+ a[0];
285        if(WebCalendar.timeShow)
286        {
287            var h = new Date().getHours(), m = new Date().getMinutes(), s = new Date().getSeconds();
288            returnValue += flag ? " "+ appendZero(h) +":"+ appendZero(m) +":"+ appendZero(s) : " "+  h  +":"+ m +":"+ s;
289        }
290        WebCalendar.objExport.value = returnValue;
291        hiddenCalendar();
292    }
293}
294function document.onclick()
295{
296    if(WebCalendar.eventSrc != window.event.srcElement) hiddenCalendar();
297}
